New to HCG, my gear guy injected 2ccs of bac wat in the bottle before he gave it to me. I wanted to do 500iu every week during my cycle, but now after research I have no idea what my strength is of the HCG and how many 500iu is on an slin needle. Any idea how many units I should be drawing up each week if I wan to do 500ius? if I need to ask my guy more questions I can. thanks